Add-Remove Cluster node

Adding and removing cluster node

Adding a node into an existing cluster is a multi steps process.

1: Set up the hardware
Before adding a node to an existing cluster, node must be physically connected with the cluster.
1: Connect the VCS private Ethernet controllers
2: Connect the node to the shared storage

2: Install the VCS software in the node
Install the VCS software and install the license.

3: Configure LLT and GAB
Create the LLT & GAB configuration files (/etc/llthosts, /etc/llttab and /etc/gabtab) in the new node and update the files on the existing node.

4: Add the node to an existing cluster
We have to perform below given tasks in any of the existing node of a cluster
1: Make to cluster configuration R/W
# haconf –makerw

5: Start VCS and verify the cluster
1: Start VCS on the new node
# hastart

2: Run the GAB configuration command on each node to verify that port a and port h include the new node in the membership.
# /sbin/gabconfig -a
Q-2 How to remove a node from an existing cluster?
Ans: Removing a node from a cluster includes many steps, which are given below: